Former Tennessee Titans quarterback Steve McNair has been killed, a source has confirmed to ESPN.com.

McNair, 36, suffered a fatal gunshot wound to the head in downtown Nashville, police spokesperson Don Aaron said. A female victim was also found dead. Aaron said the woman has not been identified, pending notification of next of kin.

The incident happened near 2nd South & Lea Ave in Nashville.

McNair played 13 seasons in the NFL, 11 were with the Titans. He played his final two years with the Baltimore Ravens, retiring after the 2007 season.

"We are saddened and shocked to hear the news of Steve McNair's passing today," Titans owner K.S. "Bud" Adams Jr. said in a statement. "He was one of the finest players to play for our organization and one of the most beloved players by our fans. He played with unquestioned heart and leadership and led us to places that we had never reached, including our only Super Bowl. Our thoughts and prayers are with his family as they deal with his untimely passing."

McNair was picked third overall in the 1995 draft out of Alcorn State by the then Houston Oilers.